Folding chair frame



FIG. 1 is a front, top and left side isometric view of a folding chair frame embodying my new design, with the chair frame shown in an erected configuration;

FIG. 2 is a rear, top and right side isometric view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof as viewed from the left of FIG. 3, the side elevational view as viewed from the right of FIG. 3 being a mirror-image thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is front, top and right side isometric view of the folding chair frame embodying my new design, with the chair frame shown in a folded configuration;

FIG. 9 is a rear, top and right side isometric view thereof;

FIG. 10 is a front elevational view thereof;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a side elevational view thereof as viewed from the left of FIG. 10, the side elevational view as viewed from the right of FIG. 10 being a mirror-image thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof. 

The ornamental design for a folding chair frame, as shown and described. 